/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.addthis.hydra.data.query.op;

import com.addthis.basis.util.MemoryCounter;

import com.addthis.bundle.core.Bundle;
import com.addthis.hydra.data.query.AbstractQueryOp;
import com.addthis.hydra.data.query.QueryMemTracker;
import com.addthis.hydra.data.query.QueryOp;

import io.netty.channel.ChannelProgressivePromise;

public class OpForward extends AbstractQueryOp {

    @MemoryCounter.Mem(estimate = false)
    private QueryOp forwardingTarget;

    protected OpForward(ChannelProgressivePromise opPromise, QueryOp forwardingTarget) {
        super(opPromise);
        this.forwardingTarget = forwardingTarget;
    }

    @Override
    public void send(Bundle bundle) {
        forwardingTarget.send(bundle);
    }

    public void setForwardingTarget(QueryOp forwardingTarget) {
        this.forwardingTarget = forwardingTarget;
    }

    @Override
    public void sendComplete() {
        // sendComplete messages suppressed by this operation
    }

    @Override
    public void setNext(QueryMemTracker memTracker, QueryOp next) {
        throw new UnsupportedOperationException("OpForward must terminate a sub-pipeline");
    }
}
